Thermostat



FIG. 1 is a front elevation view of the thermostat showing my new invention;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a top elevation view thereof;

FIG. 4 is a bottom elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof; and,

FIG. 7 is a front perspective view thereof. 

CLAIM The ornamental design for a thermostat, as shown and described. 